Ever wondered how your computer connects to the internet with just a click? The little RJ45 connector at the end of your Ethernet cable makes it happen. It may be small, but it carries a big job. Without the right plug, your connection falls flat.
In this article, you’ll learn what an RJ45 connector is, the different types available, how to choose the best one, and how to assemble them like a pro. It will provide you with easy-to-follow info to make sure you know how to wire it right the first time.
What is “RJ45”?
RJ45 stands for Registered Jack 45. It’s the standard connector used for network cables. It fits into ports on computers, routers, switches, and other network devices.
An RJ-45 connector usually connects with twisted pair cables like Cat5e, Cat6, or Cat6A. The connector looks like a small, clear plastic piece with eight metal pins inside.
When you hear people talk about “Ethernet plugs” or “network jacks,” they’re often talking about the RJ-45 connector.
If you ever see rg45 connector, r45 wiring diagram, or jr45 color code, just know they are typos or slight misnamings. They mean the same thing: the standard Ethernet plug we all use today.
What is an RJ45 Connector?
An RJ45 connector is a plastic plug attached to the end of an Ethernet cable. It lines up eight wires inside and presses them onto eight small metal contacts.
These contacts connect to a network device through an RJ45 port. That's the hole you plug your cable into. The pin layout for RJ45 is super important. Wires must be inserted into the plug in the right order, following standards like T568A or T568B. Otherwise, your network won’t work.
Some RJ45 connectors are pass-through RJ45 connectors. These let the wires stick out before crimping, making it easier to line up the colors.
Every RJ45 plug pinout, RJ45 plug wiring, and RJ45 connection wiring you see will show a careful sequence of colored wires.
RJ45 Connector Types
RJ45 connectors aren’t all the same. Picking the right style can make your wiring job easier and faster. Here are the different options available in the market.
Standard RJ45 Connectors
In a regular rj45 plug wiring diagram, you trim the wires to length, then push them into the plug. You can't see them after they're inserted, so careful measuring matters.
Pass-through RJ45 Connectors
In RJ45 pass-through connectors, the wires stick out of the front. This lets you check the color order before crimping. After crimping, you cut the extra wire flush with the plug.
Pass-through types save time, especially for beginners. That’s why many pros love rj45 pass through connector designs for faster, cleaner work.
Shielded RJ45 Connectors
A shielded RJ45 connector has extra metal around it. This reduces electrical noise and interference. Perfect for busy environments full of cables and machines.
Unshielded RJ45 Connectors
These are simpler and cheaper. Best for home networks where interference isn’t a big issue. A good connector for LAN cable choice depends on your setup. If in doubt, pick shielded for long or outdoor runs.
Standard Connectors and Toolless Connectors
Standard connectors require a crimping tool to attach. On the other hand, toolless connectors snap together without crimping tools. They're perfect when you don’t have much gear. You’ll see Ethernet cable connector types labeled as standard or toolless. Know your needs before buying.
Single-piece RJ45 Connectors and Two-piece RJ45 Connectors
Simple one-piece construction. Easier for most home users. Two-piece RJ45 connectors include a load bar or liner. This helps organize wires before inserting them into the plug. They provide better long-term durability.
How to Choose the Best RJ45 Connector?
Choosing the right RJ45 plug connection style saves you time and rework down the line. Picking the right connector comes down to four main questions:
- Cable Type: Different cables need different plugs based on wire thickness. You need to find out if you are using Cat5e, Cat6, or Cat6A to find the right connector.
- Shielding Needs: Is interference a worry? If yes, use a shielded RJ45 plug.
- Ease of Installation: If you’re new, RJ45 pass-through connectors are easier to install correctly.
- Performance Goals: For the fastest speeds (Cat6A and higher), be sure your connector matches your cable rating.
Always double-check your cable’s size and outer diameter before buying RJ45 connector types.
How to: Assemble a Shielded RJ45 Connector on CAT6A CAT7 Ethernet Cable?
Assembling a shielded RJ45 connector on a CAT6A or CAT7 Ethernet cable requires precision. Here’s the quick version:
- Step 1 - Strip the cable and peel back about 2 inches of the jacket carefully.
- Step 2 - Untwist and arrange wires while following the T568A or T568B standard. Use a guide like the Ethernet cable RJ45 wiring
- Step 3 - Use a Load Bar for better alignment inside the plug.
- Step 4 - Insert into the connector and make sure the wires reach the contacts. You can verify using an RJ45 connector diagram.
- Step 5 - Crimp the connector and use a crimper rated for shielded plugs. Press firmly.
- Step 6 - Attach the grounding clip, as it is important for shielded cables.
- Step 7 - Test the connection by using a tester to check all pins.
This method works for any shielded Ethernet cable and connectors project. A little care upfront saves a lot of trouble later.
Final Thoughts
The RJ45 connector is small but mighty. It links you to the internet, work, and entertainment every day. With the right connector, cable, and tools, you get faster speeds and fewer problems.
Looking for the best RJ45 connectors, tools, and cables? Visit TS Cables today and get the gear that keeps your network strong and steady.
FAQs
Is RJ45 the same as Ethernet?
Almost. RJ45 is the connector used at the ends of Ethernet cables.
What is the correct color code for RJ45 wiring?
Use T568A or T568B. Always follow a trusted RJ45 connector wiring diagram.
Are there different styles of RJ45 connectors?
Yes. Pass-through, shielded, toolless, and two-piece types are all options based on your needs.
Can you reuse an RJ45 connector?
No. Once crimped, they usually can’t be reused without risking poor connections.
Do I need special tools for shielded connectors?
Yes. Use a crimper rated for shielded plugs to get a solid, reliable connection.
